Power driven ski vehicle



FIG. 1 is a perspective view of a power driven ski vehicle showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is another side elevational view thereof showing the side opposite of that shown in FIG. 2; and

FIG. 4 is a rear perspective view thereof. 

The ornamental design for a power driven ski vehicle, substantially as shown and described. 